\documentclass[a4paper,11pt,oneside]{report}

%% packages
\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage[francais]{babel}
\usepackage[francais]{layout}
\selectlanguage{francais}
\usepackage{url}
\usepackage[pdftex]{graphicx}
\DeclareGraphicsExtensions{.png, .jpg, .pdf}
\usepackage{evolix}

% fonts
\usefont{T1}{fhv}{m}{sl}

%% présentation
\textwidth=16cm
\textheight=24cm
\oddsidemargin=0pt
\topmargin=0pt
\headsep=1cm
\voffset=-3cm
\footskip=1.5cm
\headheight=2.5cm
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{\textcolor{gris50}{\scriptsize{Formations Evolix}}}
\rhead{\includegraphics*[width=40mm]{pevolix}}
\lfoot{{\color{gris}Evolix - http://www.evolix.fr}}
\rfoot{\includegraphics*[width=12mm]{evolix}}
\cfoot{\scriptsize{\thepage}}

%% couleurs
\usepackage{color}
\definecolor{shell}{rgb}{0.79,0.79,0.79}
\definecolor{fichier}{rgb}{0.74,0.82,0.95}
\definecolor{gris50}{rgb}{0.5,0.5,0.5}

%% commandes
\renewcommand{\familydefault}{\sfdefault}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0.4pt}
\newcommand{\smartinclude}[1]{\include{#1}\newpage
\thispagestyle{empty}}

\setcounter{secnumdepth}{0}

